3 research outputs found

    Applicability of Resilient Back-Propagation neural network for support for Design of Flux-Cored Wire

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    μƒˆλ‘œμš΄ μš©μ ‘ 재료의 κ°œλ°œμ€ 맀우 λ³΅μž‘ν•œ μž‘μ—…μ΄ μš”κ΅¬λœλ‹€. 와이어에 μΆ©μ „λ˜λŠ” μž¬λ£ŒλŠ” λ‹€μ–‘ν•œ ν™”ν•™ 성뢄을 ν¬ν•¨ν•œλ‹€. μ•ˆμ •μ μΈ μš©μ ‘μ„ μœ„ν•΄μ„œλŠ” ν™”ν•™ μ„±λΆ„μ˜ ꡬ성 μš”μ†Œμ™€ μ•ΌκΈˆν•™μ  λ°˜μ‘μ— μ˜ν•΄ κ²°μ •λœλ‹€. 맀우 λ³΅μž‘ν•œ μƒν˜Έ μž‘μš©μœΌλ‘œ 인해 μš©μ ‘μ˜ ν”„λ‘œμ„ΈμŠ€λ₯Ό μ •λŸ‰μ μœΌλ‘œ λΆ„μ„ν•˜λŠ” 것은 거의 λΆˆκ°€λŠ₯ν•˜λ‹€. λ”°λΌμ„œ μš©μ ‘ 재료의 μ„€κ³„λŠ” μ„€κ³„μžμ˜ 기본적인 μš©μ ‘μ— λŒ€ν•œ 지식과 κ²½ν—˜μ„ ν† λŒ€λ‘œ μ§€κΈˆκΉŒμ§€ μˆ˜ν–‰λ˜μ–΄μ™”λ‹€. μš©μ ‘ 재료의 κ°œλ°œμ€ λŒ€κ°œ λ§Žμ€ 파일럿 μƒ˜ν”Œμ— λŒ€ν•΄ λ§Žμ€ ν…ŒμŠ€νŠΈμ™€ 뢄석을 ν•„μš”λ‘œ ν•œλ‹€. 이 μ—°κ΅¬λŠ” μš©μ ‘ 재료 μ„€κ³„μ‹œ μ΄λŸ¬ν•œ μ‹œν—˜ 및 λΆ„μ„μ˜ 양을 쀄이기 μœ„ν•œ μš©μ ‘ 재료의 νŠΉμ„±μ„ μ˜ˆμΈ‘ν•˜λŠ” μ‹œμŠ€ν…œμ„ λͺ©ν‘œλ‘œ ν•œλ‹€. λ³Έ μ—°κ΅¬μ—μ„œλŠ” ν”ŒλŸ­μŠ€ μ½”μ–΄λ“œ μ™€μ΄μ–΄μ˜ μž‘μ—…μ„± 및 용착 κΈˆμ† 쑰성을 λΆ„μ„ν•˜κ³  μ˜ˆμΈ‘ν•˜κΈ° μœ„ν•΄ 인곡 신경망과 λ°μ΄ν„°λ² μ΄μŠ€λ₯Ό μ΄μš©ν•œ 예츑 μ‹œμŠ€ν…œμ„ κ°œλ°œν•˜μ˜€λ‹€. 인곡 신경망은 λ³΅μž‘ν•˜κ³  λΉ„μ„ ν˜•μ μΈ 문제λ₯Ό ν•΄κ²°ν•˜λŠ” 맀우 κ°•λ ₯ν•œ 도ꡬ이닀. κ·ΈλŸΌμ—λ„ 주어진 λͺ©μ μ„ μœ„ν•΄ 졜적의 인곡신경망 λͺ¨λΈμ„ μ°ΎλŠ” 방법은 아직 μ•Œλ €μ§€μ§€ μ•Šμ•˜κΈ° λ•Œλ¬Έμ— μ μ ˆν•œ 인곡신경망 λͺ¨λΈμ„ μ–»λŠ”λ° 어렀움이 μžˆλ‹€. λ”°λΌμ„œ λ§Žμ€ μ‹œν–‰μ°©μ˜€μ™€ μ μ ˆν•œ 인곡신경망 λͺ¨λΈμ„ μ–»λŠ”λ° λ§Žμ€ 기간이 ν•„μš”ν•˜λ‹€. λ³Έ μ—°κ΅¬μ—μ„œλŠ” 탄λ ₯적 였λ₯˜μ—­μ „νŒŒ μ•Œκ³ λ¦¬μ¦˜κ³Ό λ°μ΄ν„°λ² μ΄μŠ€λ₯Ό κ²°ν•©ν•˜μ—¬ ν”„λ‘œκ·Έλž¨μ— μ μš©ν•˜μ˜€κ³  λ°μ΄ν„°λ² μ΄μŠ€μ™€ 결합을 톡해 인곡신경망 λͺ¨λΈμ„ 쉽고 λΉ λ₯΄κ²Œ μƒμ„±ν•˜μ—¬ ν…ŒμŠ€νŠΈν•  수 μžˆλ‹€. 탄λ ₯적 였λ₯˜μ—­μ „νŒŒ μ•Œκ³ λ¦¬μ¦˜μ€ 맀우 λΉ λ₯Έ ν•™μŠ΅ μ•Œκ³ λ¦¬μ¦˜μ΄κ³  기쑴의 μΌλ°˜ν™”λœ 델타 κ·œμΉ™κ³Ό 같은 μ—­μ „νŒŒ μ•Œκ³ λ¦¬μ¦˜λ³΄λ‹€ 수백 λ°° λΉ λ₯Έ ν•™μŠ΅κ²°κ³Όλ₯Ό 보여쀀닀. |The development of a new filler material having the required properties is a very complicated work. A filler material contains many kinds of chemical components. The properties of the weld deposited are determined by the chemical and metallurgical reaction of these components. It is nearly impossible to quantitatively analyze this process due to their highly complex interactions. Therefore the design of a filler material has been carried out up to now on the basis of fundamental metallurgical knowledge and experiences of filler material designers. The development of a filler material usually requires a lot of tests and analyses for many pilot samples. This research aims to develop the estimation system of the properties of a filler material for reducing the amount of these tests and analyses in developing a filler material. In this paper, an estimation system using an artificial neural network(ANN) and database was developed to analyze and predict the workability and the deposited metal composition of a flux cored wire. The neural network system is a very powerful tool to solve the complex and nonlinear problems. Nevertheless, it has a difficulty in obtaining an appropriate ANN model because the method to find optimal ANN model for any given purpose is not known yet. Therefore, it requires many trial and errors and much time to get the suitable ANN model. In this paper, the resilient backpropagation algorithm and database(DB)-coupled ANN system were applied. The resilient backpropagation algorithm is a very fast learning algorithm and shows the learning result several hundred times faster than the conventional backpropagation algorithm. The DB-coupled system can make many different ANN models and test easily and rapidly.1. μ„œ λ‘  1.1 연ꡬ배경 및 ν•„μš”μ„± 1 1.2 기쑴의 연ꡬ 2 1.3 μ—°κ΅¬μ˜ λͺ©μ  2 2. ν”ŒλŸ­μŠ€ μ½”μ–΄λ“œ 아크 μš©μ ‘(FCAW: Flux Cored Arc Welding) 2.1 FCAW 원리 3 2.2 μš©μ ‘ 재료 4 2.3 μš©μ ‘ κ²°κ³Ό 7 3. 인곡신경망 3.1 μΈκ³΅μ‹ κ²½λ§μ˜ λΆ„λ₯˜ 및 μ’…λ₯˜ 9 3.2 μΈκ³΅μ‹ κ²½λ§μ˜ ꡬ쑰 10 3.3 νΌμ…‰νŠΈλ‘  12 4. ν•™μŠ΅ 방법 4.1 기쑴의 μΌλ°˜ν™”λœ 델타 κ·œμΉ™ 15 4.2 탄λ ₯적 였λ₯˜μ—­μ „νŒŒ μ•Œκ³ λ¦¬μ¦˜ 22 5. 인곡신경망을 μ΄μš©ν•œ μš©μ ‘μž¬λ£Œμ„€κ³„ 지원 5.1 μš©μ ‘μž¬λ£Œμ„€κ³„ 27 5.2 μš©μ ‘μž¬λ£Œμ„€κ³„μ§€μ› μΈκ³΅μ‹ κ²½λ§μ‹œμŠ€ν…œ(WMANN) 28 5.3 인곡신경망을 μ μš©ν•œ μš©μ ‘μž¬λ£Œμ„€κ³„ 37 6. κ²°λ‘  Reference 48Maste
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